We all know that carbon black is mainly used in rubber tires. Of course, carbon black can also be used in other aspects, but many friends think that carbon black is extracted. In fact, it is not. Carbon black is not extracted from petroleum or what It is formed through incomplete combustion. Carbon black mainly refers to the fine particles formed after incomplete combustion of coal, petroleum, and biomass fuels. Here is an introduction to what carbon black is made of.
What is the chemical formula of carbon black?
The carbon black produced by the current process is not completely pure, and there are still some impurities in it, but the content of carbon black is still very high, which can reach more than 95%. Therefore, the chemical formula of carbon black can be considered as carbon. It is C.
What is carbon black?
Carbon black can be considered as a black pigment and also as a very high reinforcing agent.
What does carbon black do?
Now the main function of carbon black is reinforcement, and of course it also has the functions of coloring, conductivity, anti-static, wear resistance and so on.
Can carbon black be extracted from crude oil?
Petroleum and heavier or unsaturated natural gas can both produce black carbon when incompletely combusted. There are four main raw materials for carbon black: ethylene tar, coal tar, anthracene oil, and carbon black oil. In foreign countries and China, ethylene tar was mostly used in the early stage. Later, it was found that ethylene tar was expensive and the output rate was low, so it was rarely used gradually. From the point of view of density, the raw material with high output and low price and high cost performance is carbon black oil, but the quality of early domestic carbon black oil is too uneven. Of course, carbon black can also be produced using natural gas. At present, coal tar is mostly used in domestic production, and the usage of anthracene oil ranks second. In the past two or three years, the quality of carbon black oil has improved, and the usage has also increased year by year. In addition, ethylene tar has the lowest usage rate in China.
Can carbon black be extracted from waste tires?
Environmental protection is now advocated, and waste tires can be reused to extract carbon black from them. However, these carbon blacks are different from those formed by incomplete combustion of carbon black raw materials.
1. What is the use of carbon black extracted from waste tires
The carbon black extracted from waste tires is called waste tire pyrolysis carbon black. Such carbon black can be made into spherical carbon black and carbon black briquettes for heating and combustion. It can also be processed into color masterbatch and sold to the plastic industry to make some low-end plastic products. Of course, it can also be blended with rubber carbon black for filling.
2. What is the price of waste tire carbon black
The price of pyrolysis carbon black from waste tires is usually much cheaper than other carbon blacks. Now the price of rubber carbon black is basically above 6000.00 yuan per ton, while the price of carbon black from waste tires is about 2000.00 per ton. , Increase the mesh number of carbon black, and it can be sold at about 4000.00 yuan per ton. It can be seen that the price of waste tire carbon black is not very high.
Can carbon black be extracted from fly ash?
Unburned coal can be recovered in fly ash, but there can be no carbon black (carbon black and coal ash look black, but they are still very different, the biggest difference between carbon black and coal is the specific surface area and particle size). Depending on the combustion effect of the furnace, the carbon content of fly ash is above 4%, and the highest reaches 15-20%, which can be effectively recovered by flotation.